The accommodation is exactly as shown on Airbnb. It was easy for the taxi driver to find it from the airport (especially with the address written in Thai that they send to us). Although it is not in the city centre you can access it easily in less than 10 minutes taxi or tuktuk. Furthermore you have two shopping center less than 10 minutes walk if you want to go for a breakfast or diner, and a 7-11 if you want to eat cheaper than European restaurant.
Our host were kind enough to change our room number (a bit noisy one night because it is an old building and the hosts above us were really loud).
We really enjoyed our stay, it was delightful and we will recommend it to friends and definitely come back if we travel to Bangkok again. Thank you very much !